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UniqueKeyTracker

rbt::testing

Struct UniqueKeyTracker 

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pub struct UniqueKeyTracker { /* private fields */ }
Expand description

Global composite uniqueness tracker for streaming materialize.

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impl UniqueKeyTracker

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pub fn new(columns: Vec<String>) -> Self

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pub fn observe_batch(&mut self, batch: &RecordBatch) -> Result<()>

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pub fn cardinality(&self) -> usize

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impl Debug for UniqueKeyTracker

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more

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impl<T> Allocation for T
where T: RefUnwindSafe + Send + Sync,

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impl<T> Any for T
where T: 'static + ?Sized,

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Gets the TypeId of self. Read more
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impl<U> As for U

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fn as_<T>(self) -> T
where T: CastFrom<U>, U: Sized,

Casts self to type T. The semantics of numeric casting with the as operator are followed, so <T as As>::as_::<U> can be used in the same way as T as U for numeric conversions. Read more
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impl<T> AsAny for T
where T: Any,

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fn as_any(&self) -> &(dyn Any + 'static)

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fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)

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fn type_name(&self) -> &'static str

Gets the type name of self
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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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fn borrow_mut(&mut self) -> &mut T

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impl<ST, DT> CastableFrom<ST, Initialized, Initialized> for DT
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fn is<T>(&self) -> bool
where T: AsAny,

Returns true if the boxed type is the same as T. Read more
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where T: AsAny,

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where T: AsAny,

Forward to the method defined on the type Any.
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fn from(t: T) -> T

Returns the argument unchanged.

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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Calls U::from(self).

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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const ALIGN: usize

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type Init = T

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unsafe fn init(init: <T as Pointable>::Init) -> usize

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unsafe fn deref<'a>(ptr: usize) -> &'a T

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Drops the object pointed to by the given pointer. Read more
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fn and<P, B, E>(self, other: P) -> And<T, P>
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Create a new Policy that returns Action::Follow only if self and other return Action::Follow. Read more
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fn or<P, B, E>(self, other: P) -> Or<T, P>
where T: Sized + Policy<B, E>, P: Policy<B, E>,

Create a new Policy that returns Action::Follow if either self or other returns Action::Follow. Read more
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The type returned in the event of a conversion error.
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